Guides
Guides for regulated, safety-critical development.
Practical, vendor-neutral explainers on requirements traceability, regulatory frameworks, and the engineering lifecycle — written for the teams who build under audit.
RSS feed → Compliance Validating an ALM for GxP: a practical CSV framing How to approach computer system validation for an ALM in GxP environments — risk-based CSA/CSV thinking, what to test, and how Part 11 technical controls fit — without pretending a vendor can sell you compliance. Cybersecurity Cybersecurity risk and SBOM: connecting 524B to ISO 14971 How to connect FDA SBOM expectations to cybersecurity risk management — CycloneDX/SPDX import, CVE impact, and linking components to hazards, requirements, and tests. Traceability Traceability for FDA submissions: from RTM to submission evidence How to use live requirements traceability for FDA submissions — what reviewers expect, how baselines and coverage reports fit, and how to avoid the pre-submission matrix scramble. Medical Device IEC 62304 verification coverage: proving Class B and C software How to show verification coverage under IEC 62304 — safety classification, requirements-based tests, integration evidence, and why the thread must stay live for Class B and C. Medical Device Design controls evidence package: what auditors ask for How to assemble a design-controls evidence package from a living system of record — DHF/DDF expectations under QMSR, what belongs in the package, and how to avoid the binder fire drill. Buyer's Guide Hub-plus-tools vs one system of record How to choose between a requirements hub with integrations and one connected system of record — the architectural question behind Jama-style stacks, overlays, and consolidated ALM. Architecture MBSE without the round-trip: SysML on the same thread as requirements Why model-based systems engineering breaks down when SysML lives in one tool and requirements in another — and what “native MBSE on the thread” should mean for regulated programs. Compliance Electronic signatures and approval chains in practice How Part 11-style electronic signatures and approval chains work day to day — controlled transitions, signature meaning, re-authentication, and what “optional until you need it” should mean in an ALM. Risk ISO 14971 risk on the thread: not a sidecar spreadsheet How ISO 14971 risk management should connect to requirements, tests, and SBOM — so mitigations and residual risk stay tied to the design they describe. Traceability Suspect links and impact analysis: what breaks when a requirement changes What suspect links are, why regulated teams need them, and how impact analysis turns a change into a re-verification list instead of a spreadsheet fire drill. Migration Migrate from Polarion: ReqIF cutover without the big bang How to migrate from Siemens Polarion into traceunified — ReqIF export, Import Center field mapping, link import, and a project-by-project cutover. Migration Migrate from Codebeamer: leave the config tax behind How to migrate from PTC Codebeamer into traceunified — ReqIF export, Import Center mapping, staged cutover, and what to validate when simplifying a highly configurable ALM. Migration Migrate from Cameo or Rhapsody: model and thread without the round-trip How to migrate from Cameo, MagicDraw, or IBM Rhapsody into traceunified — XMI model import, requirements via ReqIF/CSV, and what to keep in specialist MBSE. Migration Migrate from Ketryx: overlay to one system of record How to migrate from a Ketryx-style compliance overlay into traceunified — Import Center paths for requirements, tests, and SBOM, and how to cut over evidence without a big-bang rewrite. Buyer's Guide Cameo and Rhapsody alternatives: connected MBSE vs specialist tools How to evaluate Cameo Systems Modeler, MagicDraw, and IBM Rhapsody alternatives — when you need deep simulation versus SysML on the same thread as requirements and tests. Buyer's Guide IBM DOORS alternatives: evaluating beyond DOORS Next How to evaluate IBM DOORS and DOORS Next alternatives — ELM suite vs one system of record, Classic end-of-support timing, and criteria for aerospace, defense, and automotive teams. Buyer's Guide Jama Connect alternatives: how to evaluate for regulated teams A practical framework for evaluating Jama Connect alternatives — hub-plus-integrations vs one system of record, what to ask every vendor, and when staying on Jama is the right call. Buyer's Guide Ketryx alternatives: overlay vs one system of record How to evaluate Ketryx alternatives for medical-device teams — when a compliance overlay over Jira/GitHub/TestRail wins, and when consolidating onto one system of record is the better bet. Migration Migrate from IBM DOORS: ReqIF staging that works How to migrate from IBM DOORS or DOORS Next into traceunified — ReqIF export, Import Center mapping, DXL realities, and module-by-module cutover. Migration Migrate from Jama Connect: a practical ReqIF path How to migrate from Jama Connect into traceunified — ReqIF export, Import Center field mapping, link import, staged cutover, and what to validate after you land. Migration Migrate from TestRail: bring cases onto the thread How to migrate TestRail cases into traceunified — CSV/Excel export, Import Center field mapping, linking to requirements and risk, and a staged cutover. Buyer's Guide Polarion and Codebeamer alternatives: ecosystem ALM vs standalone How to evaluate Siemens Polarion and PTC Codebeamer alternatives — when ecosystem ALM wins, when a standalone system of record with native MBSE and SBOM is the better bet. Buyer's Guide TestRail alternatives: when verification has to prove coverage How to evaluate TestRail alternatives for regulated teams — focused test tools vs verification on the same thread as requirements and risk, plus migration via CSV/Excel. Integrations How Integration Hub works, section by section A walkthrough of every screen in traceunified's Integration Hub — Landscape, Connections, Collections, Integrations, Activity, Sync history and Trace coverage — what each one is for, what you decide there, and what the engine does with it. Medical Device The Design History File (DHF) in 2026: what QMSR changed What a Design History File is, what belongs in it, and how the FDA's QMSR transition (effective February 2026) renames it to the Design and Development File under ISO 13485 — with the underlying design-control requirement unchanged. Fundamentals What is Application Lifecycle Management (ALM)? A clear introduction to Application Lifecycle Management — what ALM covers, how it differs from project or just requirements management, why traceability is its backbone, and what ALM means for regulated, safety-critical development. Automotive ISO 26262 traceability: from safety goals to verification How ISO 26262 builds functional safety into automotive development — ASILs, the safety lifecycle and V-model, and the traceability that links safety goals through requirements to verification evidence. Aerospace DO-178C requirements management and traceability, explained How DO-178C structures airborne software assurance — design assurance levels, the requirements hierarchy, bidirectional traceability, and requirements-based testing — and why trace data is the backbone of certification. Requirements How to write clear requirements with the EARS notation A practical guide to writing clear, testable requirements using EARS (Easy Approach to Requirements Syntax) — the five patterns, examples of each, and how structured requirements make verification and traceability far easier. Medical Device IEC 62304: the medical device software lifecycle, explained How IEC 62304 structures medical device software development — software safety classes A, B, and C, the lifecycle processes it requires, its link to ISO 14971 risk, and why traceability ties the whole thing together. Buyer's Guide Choosing requirements and traceability software: an evaluation guide A vendor-neutral framework for evaluating requirements and traceability tools for regulated, safety-critical work — the criteria that matter, the architectural question behind them, and the questions to ask every vendor. Compliance FDA 21 CFR Part 11: a practical guide to electronic records and signatures What 21 CFR Part 11 requires — electronic records, electronic signatures, audit trails, validation, and access controls — how the QMSR transition affects it, and what "Part 11 compliant" software really means. Cybersecurity SBOM and FDA cybersecurity: what Section 524B requires What a software bill of materials is, why FDA Section 524B now requires one for cyber devices, what a compliant SBOM contains, and how connecting it to your requirements and risk turns it from a list into a vulnerability-impact tool. Traceability What is a requirements traceability matrix (RTM)? A plain-English guide to the requirements traceability matrix — what it is, what belongs in it, the forward and backward links that make it work, and why it matters for regulated, safety-critical development.